183893985140 has 12 divisors (see below), whose sum is σ = 386177368836. Its totient is φ = 73557594048.

The previous prime is 183893985127. The next prime is 183893985169. The reversal of 183893985140 is 41589398381.

It can be written as a sum of positive squares in 2 ways, for example, as 39072638224 + 144821346916 = 197668^2 + 380554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 183893985140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4597349609 + ... + 4597349648.

It is an arithmetic number, because the mean of its divisors is an integer number (32181447403).

Almost surely, 2^183893985140 is an apocalyptic number.

183893985140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

183893985140 is an abundant number, since it is smaller than the sum of its proper divisors (202283383696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

183893985140 is a wasteful number, since it uses less digits than its factorization.

183893985140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194699266 (or 9194699264 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 59.

The spelling of 183893985140 in words is "one hundred eighty-three billion, eight hundred ninety-three million, nine hundred eighty-five thousand, one hundred forty".